Toward industrial and fibered non-linear sum frequency generation devices

The LISA space mission (Laser Interferometer Space Antenna) aims to detect gravitational waves using a space interferometer with arms of about 2.5 million kilometers. The 1064 nm frequency stabilized laser source involved in space operations is locked against a rigid optical cavity. A french consortium of several partners led by the french space agency (CNES) is in charge of assembly-integration and ground tests of the LISA payload. This activity uses - among other features - an iodine frequency-stabilized telecom laser (1596.7 nm), after a frequency tripling process. The third harmonic generation process is carried out using two cascaded PPLN nonlinear crystals (SHG: ω + ω →2ω) + (SFG: ω + 2ω →3ω). Afterwards, a frequency doubled Nd: YAG laser is phase locked to the telecom laser reference.